1. The motive force of flow in the plasmodium of a Myxomycete, Physarum polycephalum, was investigated, using Kamiya's double-chamber method. The results thus obtained, together with data published by the present author, as well as by other investigators, are discussed with special reference to the mechanism underlying the protoplasmic streaming of the plasmodium. 2. The metabolism of the plasmodium under the influence of metabolic poisons such as carbon monoxide, cyanide, monoiodoacetic acid, sodium fluoride and 2, 4-dinitrophenol, and reduced oxygen tension was investigated. The results thus obtained are compared with observations concerning the effects of these factors on the motive force of proto-plasmic flow. 3. Judging from these experimental results, it is inferred that the ATP formed in the fermentative process in the plasmodium makes the immediate source of energy for the production of the motive force of flow. 4. It is concluded that an actomyosin-like protein participates as the mechanism converting the chemical energy of ATP into mechanical work. The simultaneous participation of a conductive system in\
the process is also suggested.

雑誌名

お茶の水女子大學自然科學報告

巻

11

号

1

ページ

51 - 62

発行年

1960-07

ISSN

00298190

書誌レコードID

AN00033958

フォーマット

application/pdf

形態

878550 bytes

日本十進分類法

400

出版者

お茶の水女子大学

資源タイプ

紀要論文

資源タイプ・ローカル

紀要論文

資源タイプ・NII

Departmental Bulletin Paper

資源タイプ・DCMI

text

資源タイプ・ローカル表示コード

03

所属

Botanical Laboratory, Department of Biology, Faculty of Science, Ochanomizu University